3.2.15. nat¶

NAT configuration.

vrouter running config# vrf <vrf> nat

source-rule¶

A rule to change the source address/port of outgoing packets.

vrouter running config# vrf <vrf> nat
vrouter running nat# source-rule <uint64> description <string> \
...   protocol [not] VALUE \
...   destination \
...     address [not] VALUE \
...     port [not] VALUE \
...   source \
...     address [not] VALUE \
...     port [not] VALUE \
...   outbound-interface [not] <string> \
...   translate-to map MAP output-address \
...     address VALUE port PORT \
...       port-range START END \
...     address-range START END port PORT \
...       port-range START END

Priority of the rule. High number means lower priority.

description¶

A comment to describe the rule.

description <string>

protocol¶

Match a protocol.

protocol [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The protocol to match.

VALUE

`VALUE` values	Description
tcp	TCP protocol.
udp	UDP protocol.
icmp	ICMP protocol.
all	All protocols.

destination¶

Match a destination attribute.

destination \
     address [not] VALUE \
     port [not] VALUE

address¶

Match this destination address or prefix.

address [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The address to match.

VALUE

`VALUE` values	Description
<domain-name>	The domain-name type represents a DNS domain name. Fully quallified left to the models which utilize this type. Internet domain names are only loosely specified. Section 3.5 of RFC 1034 recommends a syntax (modified in Section 2.1 of RFC 1123). The pattern above is intended to allow for current practice in domain name use, and some possible future expansion. It is designed to hold various types of domain names, including names used for A or AAAA records (host names) and other records, such as SRV records. Note that Internet host names have a stricter syntax (described in RFC 952) than the DNS recommendations in RFCs 1034 and 1123, and that systems that want to store host names in schema nodes using the domain-name type are recommended to adhere to this stricter standard to ensure interoperability. The encoding of DNS names in the DNS protocol is limited to 255 characters. Since the encoding consists of labels prefixed by a length bytes and there is a trailing NULL byte, only 253 characters can appear in the textual dotted notation. Domain-name values use the US-ASCII encoding. Their canonical format uses lowercase US-ASCII characters. Internationalized domain names MUST be encoded in punycode as described in RFC 3492.
<A.B.C.D>	An IPv4 address.
<A.B.C.D/M>	An IPv4 prefix: address and CIDR mask.

port¶

Match this destination port.

port [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The port to match.

VALUE

VALUE

A 16-bit port number used by a transport protocol such as TCP or UDP.

source¶

Match a source attribute.

source \
     address [not] VALUE \
     port [not] VALUE

address¶

Match this source address or prefix.

address [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The address to match.

VALUE

`VALUE` values	Description
<domain-name>	The domain-name type represents a DNS domain name. Fully quallified left to the models which utilize this type. Internet domain names are only loosely specified. Section 3.5 of RFC 1034 recommends a syntax (modified in Section 2.1 of RFC 1123). The pattern above is intended to allow for current practice in domain name use, and some possible future expansion. It is designed to hold various types of domain names, including names used for A or AAAA records (host names) and other records, such as SRV records. Note that Internet host names have a stricter syntax (described in RFC 952) than the DNS recommendations in RFCs 1034 and 1123, and that systems that want to store host names in schema nodes using the domain-name type are recommended to adhere to this stricter standard to ensure interoperability. The encoding of DNS names in the DNS protocol is limited to 255 characters. Since the encoding consists of labels prefixed by a length bytes and there is a trailing NULL byte, only 253 characters can appear in the textual dotted notation. Domain-name values use the US-ASCII encoding. Their canonical format uses lowercase US-ASCII characters. Internationalized domain names MUST be encoded in punycode as described in RFC 3492.
<A.B.C.D>	An IPv4 address.
<A.B.C.D/M>	An IPv4 prefix: address and CIDR mask.

port¶

Match this source port.

port [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The port to match.

VALUE

VALUE

A 16-bit port number used by a transport protocol such as TCP or UDP.

outbound-interface¶

Name of an interface via which a packet is going to be sent. Only for forward, output and postrouting.

outbound-interface [not] <string>

not¶

Invert the match.

not

<string> (mandatory)¶

The interface to match.

<string>

translate-to¶

Translate to.

translate-to map MAP output-address \
     address VALUE port PORT \
       port-range START END \
     address-range START END port PORT \
       port-range START END

map¶

Translate a whole network of addresses onto another network of addresses. All ‘one’ bits in the mask are filled in from the new address. All bits that are zero in the mask are filled in from the original address.

map MAP

MAP	An IPv4 prefix: address and CIDR mask.

output-address¶

Translate to the address found on the outgoing interface.

output-address

address¶

Translate to an address and port/port range.

address VALUE port PORT \
     port-range START END

VALUE (mandatory)¶

Translate to an address.

VALUE

VALUE

An IPv4 address.

port¶

Translate to a port.

port PORT

PORT	A 16-bit port number used by a transport protocol such as TCP or UDP.

port-range¶

Translate to a port range.

port-range START END

START (mandatory)¶

Port range start.

START

START

A 16-bit port number used by a transport protocol such as TCP or UDP.

END (mandatory)¶

Port range end.

END

END	A 16-bit port number used by a transport protocol such as TCP or UDP.

address-range¶

Translate to an address range and port/port range.

address-range START END port PORT \
     port-range START END

START (mandatory)¶

Address range start.

START

START

An IPv4 address.

END (mandatory)¶

Address range end.

END

END	An IPv4 address.

port¶

Translate to a port.

port PORT

PORT	A 16-bit port number used by a transport protocol such as TCP or UDP.

port-range¶

Translate to a port range.

port-range START END

START (mandatory)¶

Port range start.

START

START

A 16-bit port number used by a transport protocol such as TCP or UDP.

END (mandatory)¶

Port range end.

END

END	A 16-bit port number used by a transport protocol such as TCP or UDP.

counters (state only)¶

Counters.

packets (state only)¶

Packets.

vrouter> show state vrf <vrf> nat source-rule <uint64> counters packets

bytes (state only)¶

Bytes.

vrouter> show state vrf <vrf> nat source-rule <uint64> counters bytes

destination-rule¶

A rule to change the destination address/port of incoming packets.

vrouter running config# vrf <vrf> nat
vrouter running nat# destination-rule <uint64> description <string> \
...   protocol [not] VALUE \
...   destination \
...     address [not] VALUE \
...     port [not] VALUE \
...   source \
...     address [not] VALUE \
...     port [not] VALUE \
...   inbound-interface [not] <string> \
...   translate-to map MAP \
...     address VALUE port PORT \
...       port-range START END \
...     address-range START END port PORT \
...       port-range START END

Priority of the rule. High number means lower priority.

description¶

A comment to describe the rule.

description <string>

protocol¶

Match a protocol.

protocol [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The protocol to match.

VALUE

`VALUE` values	Description
tcp	TCP protocol.
udp	UDP protocol.
icmp	ICMP protocol.
all	All protocols.

destination¶

Match a destination attribute.

destination \
     address [not] VALUE \
     port [not] VALUE

address¶

Match this destination address or prefix.

address [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The address to match.

VALUE

`VALUE` values	Description
<domain-name>	The domain-name type represents a DNS domain name. Fully quallified left to the models which utilize this type. Internet domain names are only loosely specified. Section 3.5 of RFC 1034 recommends a syntax (modified in Section 2.1 of RFC 1123). The pattern above is intended to allow for current practice in domain name use, and some possible future expansion. It is designed to hold various types of domain names, including names used for A or AAAA records (host names) and other records, such as SRV records. Note that Internet host names have a stricter syntax (described in RFC 952) than the DNS recommendations in RFCs 1034 and 1123, and that systems that want to store host names in schema nodes using the domain-name type are recommended to adhere to this stricter standard to ensure interoperability. The encoding of DNS names in the DNS protocol is limited to 255 characters. Since the encoding consists of labels prefixed by a length bytes and there is a trailing NULL byte, only 253 characters can appear in the textual dotted notation. Domain-name values use the US-ASCII encoding. Their canonical format uses lowercase US-ASCII characters. Internationalized domain names MUST be encoded in punycode as described in RFC 3492.
<A.B.C.D>	An IPv4 address.
<A.B.C.D/M>	An IPv4 prefix: address and CIDR mask.

port¶

Match this destination port.

port [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The port to match.

VALUE

VALUE

A 16-bit port number used by a transport protocol such as TCP or UDP.

source¶

Match a source attribute.

source \
     address [not] VALUE \
     port [not] VALUE

address¶

Match this source address or prefix.

address [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The address to match.

VALUE

`VALUE` values	Description
<domain-name>	The domain-name type represents a DNS domain name. Fully quallified left to the models which utilize this type. Internet domain names are only loosely specified. Section 3.5 of RFC 1034 recommends a syntax (modified in Section 2.1 of RFC 1123). The pattern above is intended to allow for current practice in domain name use, and some possible future expansion. It is designed to hold various types of domain names, including names used for A or AAAA records (host names) and other records, such as SRV records. Note that Internet host names have a stricter syntax (described in RFC 952) than the DNS recommendations in RFCs 1034 and 1123, and that systems that want to store host names in schema nodes using the domain-name type are recommended to adhere to this stricter standard to ensure interoperability. The encoding of DNS names in the DNS protocol is limited to 255 characters. Since the encoding consists of labels prefixed by a length bytes and there is a trailing NULL byte, only 253 characters can appear in the textual dotted notation. Domain-name values use the US-ASCII encoding. Their canonical format uses lowercase US-ASCII characters. Internationalized domain names MUST be encoded in punycode as described in RFC 3492.
<A.B.C.D>	An IPv4 address.
<A.B.C.D/M>	An IPv4 prefix: address and CIDR mask.

port¶

Match this source port.

port [not] VALUE

not¶

Invert the match.

not

VALUE (mandatory)¶

The port to match.

VALUE

VALUE

A 16-bit port number used by a transport protocol such as TCP or UDP.

inbound-interface¶

Name of an interface via which a packet was received. Only for input, forward and prerouting.

inbound-interface [not] <string>

not¶

Invert the match.

not

<string> (mandatory)¶

The interface to match.

<string>

translate-to¶

Translate to.

translate-to map MAP \
     address VALUE port PORT \
       port-range START END \
     address-range START END port PORT \
       port-range START END

map¶

Translate a whole network of addresses onto another network of addresses. All ‘one’ bits in the mask are filled in from the new address. All bits that are zero in the mask are filled in from the original address.

map MAP

MAP	An IPv4 prefix: address and CIDR mask.

address¶

Translate to an address and port/port range.

address VALUE port PORT \
     port-range START END

VALUE (mandatory)¶

Translate to an address.

VALUE

VALUE

An IPv4 address.

port¶

Translate to a port.

port PORT

PORT	A 16-bit port number used by a transport protocol such as TCP or UDP.

port-range¶

Translate to a port range.

port-range START END

START (mandatory)¶

Port range start.

START

START

A 16-bit port number used by a transport protocol such as TCP or UDP.

END (mandatory)¶

Port range end.

END

END	A 16-bit port number used by a transport protocol such as TCP or UDP.

address-range¶

Translate to an address range and port/port range.

address-range START END port PORT \
     port-range START END

START (mandatory)¶

Address range start.

START

START

An IPv4 address.

END (mandatory)¶

Address range end.

END

END	An IPv4 address.

port¶

Translate to a port.

port PORT

PORT	A 16-bit port number used by a transport protocol such as TCP or UDP.

port-range¶

Translate to a port range.

port-range START END

START (mandatory)¶

Port range start.

START

START

A 16-bit port number used by a transport protocol such as TCP or UDP.

END (mandatory)¶

Port range end.

END

END	A 16-bit port number used by a transport protocol such as TCP or UDP.

counters (state only)¶

Counters.

packets (state only)¶

Packets.

vrouter> show state vrf <vrf> nat destination-rule <uint64> counters packets

bytes (state only)¶

Bytes.

vrouter> show state vrf <vrf> nat destination-rule <uint64> counters bytes